Aromatherapy is a relaxing therapy. Relaxing fragrances help you deal better with stress and tend to produce slower frequency brain waves. You may not need it, but scents, including those in the following list, additionally have antidepressant properties when you smell them.

Bergamot Neroli
Chamomile Petitgrain
Frankincense Rose
Geranium Sandalwood
Lavender Ylang ylang